Top secret U.S. Navy system heard titan implosion days ago

I'm pretty sure the Navy also knows what was causing the "banging" heard underwater during the search. I don't understand the point of leaking this information now, it just makes it look like the Coast Guard spent 3 days and considerable money pretending to look for a target it knew was probably destroyed.

For those who doubted this... one of the main components of a strategic nuclear arm is submarines, even more than ICBMs to an extant, a nuclear strike might be able to wipe out all your launch facilities, but it isn't going to take out your subs, which are going to be around for a 2nd strike.

Because of that being able to detect anything in the ocean anywhere within a reasonable distance of your coastal regions is a matter of life and death for a strong nuclear power, so the USN definitly new about this. Heck the USN probably knows the location of every single whale in 50% of the Earth's oceans.

For starters the USCG != USN. They are 2 completely seperate branches of the military, even if the Navy likes to pretend the USCG doesn't exist and the USCG likes to pretend it's just as important as the Navy.

With that being the case it could be operational inertia. Sonar tech hears something weird, reports it to his boss. His boss puts in a morning update the next day, he sees about the sub on the news, but he can't just go sending this info off, he runs it up the chain, eventually a person with authority hands it off to the USCG who then passes it back down, and eventually someone in media gets ahold of it, or someone in an official capacity makes an announcement.